She's pretty detached in the most recent email and in the earlier email you posted, except where she let you tweak her a bit with the running total thing. You are over the top reactive. This is normal. But she is right, sweating this detail is an emotional thing, not business.
Leave her on your insurance, you and everyone else knows that it is the decent thing to do, and may well be a legal requirement. Deal with the premiums in your legal settlement as a business matter. This is only a business matter. Treat it as such.
Leave the D to the Ls, agree to her reasonable requests about the pics, get her moved out ASAP.
